Worm-gear construction for rotary drills, &amp;c.



P. YUNGLING.

WORM GEAR CONSTRUCTION FOR ROTARY DRILLS, &c.

APPLICATION FILED sEPT.22.1919.

1,345, 1 1 0. Patented June 29, 1920.

7 m /fl INVENTOR.

fiuZYn my Z in A TTOgQNEYj.

' To all whom it may concern:

UNITE-D STATES IAUL YU NGLING-t LOS ANGELES; CALIFORNIA.

WORM-GEAR CONSTRUCTION FOR ROTARY DRILLS, 800.

Specification of Letters Patent. Patented June 29, 1920.

Application filed September 22,1919. Serial No. 325,535.

Be it known that I, PAUL YUNGLIne, a

citizen of the United States, residing at y Los Angeles, in the county of Los Angeles and State of California, have invented new and useful Improvements in Worm-Gear Constructions for Rotary Drills, &c., of which the following is a specification.

My-object is to make a worm gear power for rotary drills and the like, and my invention consists of, the novel features herein shown, described and claimed.

Figure lis a top plan view of a worm gear power for rotary drills and the like embodying the principles of my invention,

the View being taken looking in .the direc ,27, and through coil springs 28 and 29, and

tion indicated bythe arrow 1 in Fig. 2, and

parts being broken away and shown in sec-' tion.

Fig. 2 is a fragmentary vertical sectional detail on the line 22 of Fig. 1.

The base 1 is rectangular in plan and has a circular central opening 2. The turntable 3 is circular in plan and has a pintle 4 fitting loosely in the opening 2. A flange 5 is screwed upon the lower end of the pintle 4 below the base 1 to hold the turntable from moving upwardly.

The drill stem wrench 6 fits 'upon the squared drill stem 7 and fits non-rotatably in the central opening 8 extending through the pintle 4. The wrench 6 has ahead 9 recessed into the turntable 3, the upper face of the head being flush w of the turntable 3.

An annular recess 10 is formed in the base 1 concentric to the opening 2' thereby. leaving an annular wall 11 between the recess 10 and the opening 2. A flange 12 extends downwardly from the turntable 3 into the recess 10. Vertical bearing rollers 13 are inserted between the inner face of the flange 12 and the outer face of the annular wall 11. The worm gear ring 14 is screwed upon the flange 12 and fits loosely inthe recess 10. The turntable 3 extends over the recess 10 a considerable distance, and horizontal bearin turnta le 3 and the base 1 outside of the recess 10.

An oil ring 16 is inserteddownwardly into the wall 11 and extends upwardly to the top of the annular recess 17 which is b e tween the flange 12 and the pintle 4 to hold the oil from flowing from the chamber which ith the upper face rollers are inserted between the holds the bearing rollers 13 over into the opening 2.

Holes18 are formed through the head 9, and corresponding holes 19 are formed in the turntable in line with the holes 18, so that pins may be inserted into the holes 18 and 19 tohold'the head 9 from rotating in the turntable p A bore 20 is formed horizontally through the base 1, and a worm 21 is mounted in the bore 20 in meshwith the wormgear 14, so

i that as the worm 21 is driven the turntable 3 will be rotated to rotate the drill stem 7.

/ The stems 22 and 23 extend from the ends I of the worm 21 through thrust bearings 24 and 25, and through roller bearings 26 and through roller bearings 30 and 31, and

through bushings 32 and 33. The bushings 32 and 33 are screwed in the ends of the bore 20, and the tensions of the springs 28 nected to the stem in any desired way.

A pedestal 35 extends outwardly from the worm gear casing. A bore 36 extends downwardly from the top of the pedestal. An oil cup 37 isscrewed into the upper end of the bore 36. A bore 38 extends hori- Zontallythrough the base 1 across the lower end of the bore 36. The outer end of the bore 38 is closed by a plug 39, and the bore 40 extends downwardly from the bottom of the recess 10 to the inner end of the bore 38, so that oil will flow from the oil cup 37 downwardly through the bore 36 laterally through the bore 38 and upwardly through the bore 40 to the recess 10 to flood the worm 21, the worm gear 14 and the rollers 13, and

the upper edge of the oil ring 16 is higher than the bottom of the overflow port 41, so

that oil may be poured into the cup 37 until the recess 10 is filled and the oil overflows through the port 41'and the oil will Various changes may be made without departing from the spirit of my invention as claimed.

I claim:

I and the like comprising a base having a vertical opening and an annular recess extending downwardly fromits upper face concentric to the vertical opening, a turn-.

table having a pintle extending downwardly into the vertical opening and a flange extending downwardly into the recess, vertical roller bearings between the inner face'of the flange and the base, horizontal roller bearings between the turntable and the base outside of the recess, a 'worm gear ring screwed upon the flange, and a worm gear construction extending horizontally through the base and meshing with the worm gear.

2. A worm gear power for rotary drills and the like comprising a base having a central opening, an annular recess extending from its upper face concentric to the central opening and a horizontal bore communicating with, the annular recess, a turntable having a pintle extending into the vertical opening, an annular flange extending into the recess and a worm gear upon the annular flange, aworm mounted in the horizontal bore in mesh with the worm gear, thrust bearings against the 'ends of the worm, stems extending from the ends of the worm through the thrust bearings to the ends-of the bore, roller bearings outside of the thrust bearings around the stems, sprin against the roller bearings around t e stems, roller bearings against the springs around the stems, and bushings screwed'into the ends of the bore against the last roller bearings.

3. A worm gear power for rotary drills and the like comprising a base having a vertical opening and an annular recess extending downwardly from its upper face con-- centric .to the vertical opening, a turntable having a pintle extending downwardly into the vertical 0 ening andian operating flange extending do nwardly into the recess, a stop flange screwed upon the lower end of the pintle below the base to hold'the turn;

table from moving upwardly, aworm gear ring screwed upon the operating flange, and a worm construction extending horizontally through the base and meshing with A the 'worm gear.

4. A worm gear power for rotary drills and the like comprising a base having an annular recess in its upper face, a turntable formed with an operating flange extending downwardly into said recess, a worm gear ring secured upon, said operating flange, and a worm mounted in the base and meshing with the said worm gear, said base being provided with a bore leading into 'said recess mounted in said base meshing with said 'worm gear, said base being provided' with a. bore leading into said recess for floodin said bearing rollers and said worm gear ail worm with 011.

'6. A worm gear power for rotary drills andthe like comprising a base having a vertical opening and an annular recess extending downwardly from its upper face concentric to the vertical opening, a turntable having a pintleextending downwardly intothe vertical openin and a flange'exten ding downwardly lnto t e recess, verticalroller bearings between the inner face of the flange and the base, a worm gear ring screwed upon the flange, and a worm construction extending horizontally through the base and meshing with the worm earn.

In testimony whereof I have signe my name tothis specification.

PAUUYUNGLI-NG.

so A 

